ANTIMICROBIAL ACTIVITY OF DIETHYL PHTHALATE – AN INSILICO APPROACH

摘要

Reactive oxygen species (ROS)are produced by host phagocytes and can attack a diverse range of targets to exert antimicrobial activity, against a broad range of pathogens. Four major ROS are recognized comprising superoxide, hydrogen peroxide, hydroxyl radical (?OH), and singlet oxygen. Antioxidant enzymes such as glutathione peroxidase (GPX), superoxide dismutase and glutathione (GSH)reductase plays a crucial role by protecting the organism from endogenous ROS diethyl phthalate is a secondary metabolite produced from endophytic fungi. Diethyl phthalate and generally phthalate esters have an inhibitory effect on superoxide dismutase (SOD), While comparing the results from the docking experiments and their interactions among the three enzymes SOD have the least binding energy of ?6.45 kcal and more stable with the ligand diethyl phthalate after it has been docked, anti-oxidant function of SOD is inhibited more rather than the other two proteins GPX and GSH reductase. As a result there is an increase in superoxide production, which was found to exert ROS generated oxidative stress in the cytoplasm of bacterial cells, leading to cell death.